Ecosystem and Matter Cycling Quiz

Which two examples describe the cycling of matter between an organism and the ecosystem ?

• A decomposer breaks down materials and returns them to the soil.

• An herbivore receives energy when it consumes a producer.

• A producer uses carbon dioxide from the air to make its own food.

• An omnivore eats a producer before it is consumed by a carnivore

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What's the role of decomposers in the ecosystem?

• Decomposers return matter back to the ecosystem.

• Decomposers absorb carbon dioxide waste.

• Decomposers create new matter for the ecosystem

• Decomposers provide food for plants.

Tags

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What do the arrows in the model show?

• The arrows show the organisms losing energy in the ecosystem.

• The arrows show the movement of organisms living in the forest.

• The arrows show the movement of matter in the ecosystem.

• The arrows show the organisms competing for food in the ecosystem

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NGSS.MS-LS2-3

Which TWO claims about consumers are supported by the model?

• Phytoplankton are consumers that receive matter from algae.

• Sharks are consumers that receive matter from fish.

• Humans are consumers that receive matter from mussels and fish.

• Zooplankton are consumers that receive matter from starfish.

• Seagulls are consumers that receive matter from fish.

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What BEST describes the relationship between the water, the phytoplankton, and the zooplankton?

• The zooplankton change matter in the water into nutrients used by the phytoplankton.

• The phytoplankton receive matter from the zooplankton and provide matter to the water.

• The zooplankton and the water provide matter that can be used by the phytoplankton for growth.

• The phytoplankton change matter in the water into food that can be used by the zooplankton.

Tags

NGSS.MS-LS2-1

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Based on the food chain, which organism receives the least amount of energy?

• Zooplankton

• Algae

• Osprey

• Small Fish

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Based on the food chain, which organism is acting as a decomposer?

• Insects

• Mouse

• Fungi

• Fox

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Which organism in the food chain is the secondary consumer?

• Berries

• Mouse

• Raccoon

• Coyote

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Which organisms receive the smallest percentage of energy in the food web?

• Plankton and krill

• Krill and squid

• Seagull, penguin, seal, and blue whale

• Squid and plankton

Tags

NGSS.MS-LS2-3

Which of the following is a primary consumer in the food web?

• Seal

• Krill

• Squid

• Seagull

Tags

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